Home / 1,368,968.80-2,053,744.80-422,435.20

Finding the Fourth Proportional to 1,368,968.80, 2,053,744.80 and 422,435.20

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Solution

The fourth proportional to 1,368,968.80, 2,053,744.80 and 422,435.20 is: 633,742.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,968.80 : 2,053,744.80 = 422,435.20 : x
  2. Step 2: Convert to fraction form
    1,368,968.80/2,053,744.80 = 422,435.20/x
  3. Step 3: Cross multiply
    1,368,968.80x = 2,053,744.80 × 422,435.20
  4. Step 4: Simplify right side
    1,368,968.80x = 867,574,095,336.96
  5. Step 5: Solve for x
    x = 867,574,095,336.96/1,368,968.80
  6. Step 6: Final answer
    x = 633,742.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.